
package org.wk.upms.shiro;

import com.google.common.base.Strings;
import org.apache.shiro.authc.*;
import org.apache.shiro.authc.credential.CredentialsMatcher;
import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.wk.upms.common.constant.Constant;
import org.wk.upms.service.ManagerService;
import org.wk.upms.service.ResourceService;
import org.wk.upms.view.ManagerVo;

import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * 认证
 *
 */
@Component
public class UserRealm extends AuthorizingRealm {
    @Autowired
    private ManagerService sysUserDao;
    @Autowired
    private ResourceService sysMenuDao;
    
    /**
     * 授权(验证权限时调用)
     */
	@Override
	protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
		ManagerVo user = (ManagerVo)principals.getPrimaryPrincipal();
		String userId = user.getUserId();

		Set<String> permsList = sysMenuDao.queryAllPerms(userId);

		SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
		info.setStringPermissions(permsList);
		return info;
	}

	/**
	 * 认证(登录时调用)
	 */
	@Override
	protected AuthenticationInfo doGetAuthenticationInfo(
			AuthenticationToken authcToken) throws AuthenticationException {
		UsernamePasswordToken token = (UsernamePasswordToken)authcToken;

		//查询用户信息
		String mobile = token.getUsername();
		ManagerVo managerVo = sysUserDao.selectByMobile(mobile);

		//账号不存在
		if(managerVo == null) {
			throw new UnknownAccountException("账号或密码不正确");
		}

		//账号锁定
		if(!"1".equals(managerVo.getStatus())){
			throw new LockedAccountException("账号已被锁定,请联系管理员");
		}

		SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(managerVo, managerVo.getPassword(), ByteSource.Util.bytes(managerVo.getSalt()), getName());
		return info;
	}

	@Override
	public void setCredentialsMatcher(CredentialsMatcher credentialsMatcher) {
		HashedCredentialsMatcher shaCredentialsMatcher = new HashedCredentialsMatcher();
		shaCredentialsMatcher.setHashAlgorithmName(ShiroUtils.hashAlgorithmName);
		shaCredentialsMatcher.setHashIterations(ShiroUtils.hashIterations);
		super.setCredentialsMatcher(shaCredentialsMatcher);
	}
}
